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Wireline Diamond Drilling Core Barrel Assembly
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8 1/2 mirefy vatana vy Pdc fandavahana Bit miaraka amin'ny 5 B...
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China diamondra fandavahana tsorakazo sy fandavahana bits ho ...
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Karazana habe reaming akorandriaka reamer
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Core bit sy reaming akorandriaka
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M30 High fahombiazana mafy vatolampy midina ny lavaka DTH ...